In-Plane Switching Mode Liquid Crystal Display Device

ABSTRACT

Disclosed is an in-plane switching mode liquid crystal display, in which a pixel electrode and a common electrode are formed on the same substrate. The display includes a first substrate having a first conductive layer and second conductive layer, the first conductive layer and second conductive layer formed on each surface of the first substrate; a second substrate has a transparent pixel electrode and a transparent common electrode formed on one surface of the second substrate, facing the second conductive layer; an electrical connection part is installed to electrically connect the second conductive layer to the transparent common electrode, wherein a common voltage applied to the transparent common electrode is applied to the second conductive layer through the electrical connection part. This arrangement prevents generation of static electricity to suppress a whitening phenomenon due to liquid crystal polarization in a liquid crystal layer, thereby improving display image quality.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates, in general, to an in-plane switching modeliquid crystal display device having a pixel electrode and a commonelectrode formed on the same substrate, and more particularly, to anin-plane switching mode liquid crystal display device capable ofsuppressing a liquid crystal polarization due to external staticelectricity to improve display image quality, by forming an inducedelectric field between a first conductive layer and a second conductivelayer, to which a common voltage is applied through an electricalconnection.

2. Description of the Related Art

In recent times, research on an in-plane switching mode (IPS) liquidcrystal display (LCD) has been widely performed. The IPS LCD includestwo electrodes formed on the same substrate such that a voltage isapplied between the two electrodes to generate a horizontal electricfield or a fringe electric field with respect to the substrate.

Hereinafter, the structure of a conventional IPS LCD will be describedin brief with reference to the accompanying drawings.

FIG. 1 is a schematic cross-sectional view of a conventional IPS LCD.

Since the conventional IPS LCD shown in FIG. 1 includes a pixel array 22having a pixel electrode and a common electrode and formed at one sideof a lower substrate 20, when static electricity is generated from anupper substrate having no electrode, a liquid crystal polarization maybe generated in a liquid crystal layer (LC, 40) due to staticelectricity, thereby deteriorating display image quality. In order toprevent occurrence of the liquid crystal polarization, a method ofgrounding static electricity introduced from the exterior through an SUSbezel 30 upon introduction of the static electricity by coating atransparent conductive layer 16 on a rear surface of the upper substrate10, and connecting a copper tape 32 to the SUS bezel 30 surrounding amold frame 29 has been used.

As described above, the transparent conductive layer 16 in contact withthe SUS bezel 30 functions as a ground terminal to prevent the uppersubstrate 10 as a dielectric material from being charged uponintroduction of external static electricity, thereby preventingintrusion of the electric field into a liquid crystal 40 due to thestatic electricity.

However, when the SUS bezel 30 is removed in order to form a small,lightweight and compact device such as a mobile or portable appliance,the transparent conductive layer 16 formed on the rear surface of theupper substrate 10 must be floated, making it impossible to perfectlyshield the static electricity.

SUMMARY OF THE INVENTION

Accordingly, the present invention has been made keeping in mind theabove problems occurring in the related art, and an object of thepresent invention is to provide an in-plane switching mode liquidcrystal display capable of suppressing a liquid crystal polarization dueto external static electricity to improve display image quality.

In order to achieve the above object, according to one aspect of thepresent invention, there is provided an in-plane switching mode liquidcrystal display comprising: a first substrate having a first conductivelayer and second conductive layer, the first conductive layer and secondconductive layer formed on each surface of the first substrate; a secondsubstrate having a transparent pixel electrode and a transparent commonelectrode formed on one surface of the second substrate, facing thesecond conductive layer; an electrical connection part is installed toelectrically connect the second conductive layer to the transparentcommon electrode, wherein a common voltage applied to the transparentcommon electrode is applied to the second conductive layer through theelectrical connection part.

According to another aspect of the present invention, there is providedan in-plane switching mode liquid crystal display comprising: a firstsubstrate having a first conductive layer, second conductive layer, andan insulating layer between the first conductive layer and secondconductive layer; a second substrate having a transparent pixelelectrode and a transparent common electrode formed on one surface ofthe second substrate, facing the second conductive layer; an electricalconnection part is installed to electrically connect the secondconductive layer to the transparent common electrode, wherein a commonvoltage applied to the transparent common electrode is applied to thesecond conductive layer through the electrical connection part.

The insulating layer may be over coater layer for improvingplanarization.

The color filter layer may be formed on the first substrate, includingcolor filter patterns and the second conductive layer mat be patternedconductive light-shielding layer formed between the color filterpatterns.

The first conductive layer may be patterned in a shape corresponding tothe light-shielding layer.

The color filter layer may be further formed on the first substrateincluding color filter patterns and a conductive light-shielding layerformed between the color filter patterns, and wherein the secondconductive layer is patterned in a shape corresponding to the conductivelight-shielding layer.

The first conductive layer may be replaced with a conductive polarizer.

Preferably, the in-plane switching mode liquid crystal display furthercomprises a conductive polarizer on the first conductive layer.

The first conductive layer may be formed of a metal material or aconductive resin.

The first conductive layer may be totally formed of a transparent metalmaterial or a transparent conductive resin.

Preferably, the in-plane switching mode liquid crystal display furthercomprises a color filter layer formed on the first substrate, includingcolor filter patterns and a light-shielding layer including color filterpatterns.

Preferably, the in-plane switching mode liquid crystal display furthercomprises an overcoat layer between the first conductive layer and thesecond conductive layer.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other objects, features and other advantages of thepresent invention will be more clearly understood from the followingdetailed description when taken in conjunction with the accompanyingdrawings, in which:

FIG. 1 is a schematic cross-sectional view of a conventional in-planeswitching mode liquid crystal display;

FIG. 2A is a schematic cross-sectional view of an in-plane switchingmode liquid crystal display in accordance with an exemplary embodimentof the present invention;

FIG. 25 is a plan view of an in-plane switching mode liquid crystaldisplay including a transfer dotting part of FIG. 2A; and

FIG. 3 is a schematic cross-sectional view of an in-plane switching modeliquid crystal display in accordance with another exemplary embodimentof the present invention.

FIG. 4 is a schematic cross-sectional view of an in-plane switching modeLCD device according to still another exemplary embodiment of thepresent invention.

FIG. 5 is a schematic cross-sectional view of an in-plane switching modeLCD device according to still another exemplary embodiment of thepresent invention.

DETAILED DESCRIPTION OF THE INVENTION

The invention is described more fully hereinafter with reference to theaccompanying drawings, in which exemplary embodiments of the inventionare shown. This invention may, however, be embodied in many differentforms and should not be construed as limited to the exemplaryembodiments set forth herein. Rather, these exemplary embodiments areprovided so that this disclosure is thorough, and will fully convey thescope of the invention to those skilled in the art.

FIG. 2A is a schematic cross-sectional view of an in-plane switchingmode liquid crystal display in accordance with an exemplary embodimentof the present invention, and FIG. 2B is a plan view of an in-planeswitching mode liquid crystal display including a transfer dotting partof FIG. 2A.

Hereinafter, the in-plane switching mode liquid crystal display inaccordance with an exemplary embodiment of the present invention will bedescribed with reference to FIGS. 2A and 2B.

The in-plane switching mode liquid crystal display in accordance with anexemplary embodiment of the present invention includes a first substrate210, color filter layers 212R, 212G, and 212B, a conductivelight-shielding layer 214, a conductive layer 216, a second substrate220, a pixel array 222 including a transparent pixel electrode and atransparent common electrode, and an electrical connection part 224.

The conductive layer 216 is formed on one surface of the first substrate210. When the conductive layer 216 is formed on the entire one surfaceof the first substrate 210, the conductive layer 216 may be formed of atransparent conductive resin or a transparent conductive metal materialsuch as indium tin oxide (ITO) or indium zinc oxide (IZO) havingrelatively good light transmissivity. In addition, when the conductivelayer 216 is patterned on one surface of the first substrate 210 tocorrespond to the conductive light-shielding layer 214, the conductivelayer 216 may be formed of metal material and conductive resin of alltypes including the transparent conductive resin and the transparentconductive metal material. Here, the transparent conductive resin may beformed of a mixture of indium tin oxide powder and acryl (ITO powder+acryl), epoxy, or the like.

An upper conductive polarizer 219 may be formed on the conductive layer216. Otherwise, the upper conductive polarizer 219 may be formed on thefirst substrate 210 without the conductive layer 216.

The conductive light-shielding layer, i.e., black matrices 214 functionto prevent light leakage, and may include chrome (Cr). The conductivelight-shielding layer 214 is formed on the other surface of the firstsubstrate 210 at predetermined intervals to generally divide the colorfilter layers 212R, 212G and 212B of red, green and blue.

The color filter layers 212R, 212G and 212B, generally formed of aphotosensitive organic material, are alternately arranged in sequence ofred, green and blue color filter patterns between the conductivelight-shielding layers 214. Meanwhile, an overcoat layer 218 may beselectively formed under the color filter layers 212R, 212G and 212B toremove a step difference generated by the color filter layers 212R, 212Gand 212B and improve planarity.

A pixel array 222 including a transparent pixel electrode and atransparent common electrode is formed on one surface of the secondsubstrate 220. While not specifically shown, each pixel region isdefined by gate lines and data lines formed to intersect each other.Switching devices are disposed at the intersection of the gate lines andthe data lines. The pixel electrode and the transparent common electrodeare spaced apart from each other to overlap a predetermined region, withan insulating layer interposed therebetween, and are disposed in thepixel region in order to apply a voltage to a liquid crystal layer 230to thereby adjust light transmissivity.

The electrical connection part 224 is electrically connected to theconductive light-shielding layer 214 and the transparent commonelectrode of the pixel array 222, and includes a transfer dotting partincluding a metal having high conductivity, preferably, silver (Ag), ora conductive sealing member including gold (Au).

When a common voltage is applied to the transparent common electrode ofthe pixel array 222, the common voltage is applied to the conductivelight-shielding layer 214 through the electrical connection part 224 toform an induced electric field between the conductive light-shieldinglayer 214 and the conductive layer 216, thereby preventing externalstatic electricity from affecting the liquid crystal layer 230. That is,as bi-directional arrows shown in a vertical direction of the firstsubstrate 210 of FIG. 2A, the induced electric field is formed betweenthe conductive layer 216 and the conductive light-shielding layer 214 toprevent occurrence of a liquid crystal polarization in the liquidcrystal layer 230.

In FIG. 2A, reference numeral 225 designates a sealing member, referencenumeral 226 designates a lower polarizer, reference numeral 228designates a back light unit, and reference numeral 229 designates amold frame.

When the electrical connection part 224 is a transfer dotting part, asshown in FIG. 2B, the transfer dotting part 224 may be formed outsidethe sealing member 225 surrounding the pixel region.

Here, when the conductive layer 216 is replaced with only the upperconductive polarizer 219, the induced electric field is formed betweenthe upper conductive polarizer 219 and the conductive light-shieldinglayer 214.

FIG. 3 is a schematic cross-sectional view of an in-plane switching modeliquid crystal display in accordance with another exemplary embodimentof the present invention.

Referring to FIG. 3, the in-plane switching mode liquid crystal displayin accordance with an exemplary embodiment of the present inventionincludes a first substrate 310, color filter layers 312R, 312G, and312B, a light-shielding layer 314, a first conductive layer 316, asecond conductive layer 317, a second substrate 320, a pixel array 322including a transparent pixel electrode and a transparent commonelectrode, and an electrical connection part 332.

The conductive layer 316 is formed on one surface of the first substrate310. When the conductive layer 316 is formed on the entire one surfaceof the first substrate 310, the conductive layer 316 may be formed of atransparent conductive resin or a transparent conductive metal materialsuch as indium tin oxide (ITO) or indium zinc oxide (IZO) havingrelatively good light transmissivity. In addition, when the conductivelayer 316 is patterned on one surface of the first substrate 310 tocorrespond to the light-shielding layer 314, the conductive layer 216may be formed of metal material and conductive resin of all typesincluding the transparent conductive resin and the transparentconductive metal material. Here, the transparent conductive resin may beformed of a mixture of indium tin oxide powder and acryl (ITO powder+acryl), epoxy, or the like.

An upper conductive polarizer 319 may be formed on the first transparentconductive layer 316. On the other hand, the upper conductive polarizer319 may be formed on the first substrate 310, without the firsttransparent conductive layer 316.

The light-shielding layer 314 functions to prevent light leakage, andmay include resin. The light-shielding layer 314 formed of resin canimplement clear display even in an outdoor environment because thelight-shielding layer 314 does not reflect external incident light. Inaddition, a reddish coloring problem generated by the internalreflection upon implementation of ultra-high brightness can be readilysolved, and design of the liquid crystal display and a manufacturingprocess thereof can be simplified.

The light-shielding layers 314 are formed on the other surface of thefirst substrate 310 at predetermined intervals, lo and generally dividethe red, green and blue color filter layers 312R, 312G and 312B.

The color filter layers 312R, 312G and 312B, generally formed of aphotosensitive organic material, are alternately arranged in sequence ofred, green and blue color filter patterns between the light-shieldinglayers 314.

The second conductive layer 317 substantially patterned under thelight-shielding layer 314 in a shape corresponding to thelight-shielding layer 314.

Meanwhile, an overcoat layer 318 may be selectively formed under thecolor filter layers 312R, 312G and 312B to remove a step differencegenerated by the color filter layers 312R, 312G and 312B and improveplanarity. This case, the second conductive layer 317 may be formedunder the overcoat layer 318. Here, the overcoat layer 318 may include athermosetting material.

The second conductive layer 317 may be formed between the secondsubstrate 320 and the light-shielding layer 314. This case, the secondconductive layer 317 is patterned in a shape corresponding to thelight-shielding layer 314 or on the entire of the second substrate 320.

The pixel array 322 including a transparent pixel electrode and atransparent common electrode is formed on one surface of the secondsubstrate 320. Meanwhile, each pixel region is defined by gate lines anddata lines formed to intersect each other. Switching devices aredisposed at the intersection of the gate lines and the data lines (notshown). The pixel electrode and the transparent common electrode arespaced apart from each other to overlap a predetermined region, with aninsulating layer (not shown) interposed therebetween, and are disposedin the pixel region in order to apply a voltage to a liquid crystallayer 330 to thereby adjust light transmissivity.

The electrical connection part 332 is electrically connected to thesecond conductive layer 317 and the transparent common electrode of thepixel array 322, and includes a transfer dotting part including a metalhaving high conductivity, preferably, silver (Ag), or a conductivesealing member including gold (Au).

When a common voltage is applied to the transparent common electrode ofthe pixel array 322, the common voltage is applied to the secondconductive layer 317 through the electrical connection part 332 to forman induced electric field between the second conductive layer 317 andthe first conductive layer 316, thereby preventing external staticelectricity from affecting the liquid crystal layer 330. That is, asshown by arrows, the induced electric field is formed between the firstconductive layer 316 and the second conductive layer 317 to preventoccurrence of a liquid crystal polarization in the liquid crystal layer330.

Meanwhile, as shown in FIG. 3, the IPS LCD further includes a sealingmember 325, a lower polarizer 326, a back light unit 328, and a moldframe 329.

Here, when the first conductive layer 316 is replaced with the upperconductive polarizer 319, an induced electric field is formed betweenthe upper conductive polarizer 319 and the second conductive layer 317.

Meanwhile, since basic components of the LCD, which are not specificallydescribed, for example, a thin film transistor, a substrate, a liquidcrystal layer, and so on, are the same as in the conventional LCD,detailed descriptions thereof will be omitted.

FIG. 4 is a schematic cross-sectional view of an in-plane switching modeLCD device according to still another exemplary embodiment of thepresent invention.

Referring to FIG. 4, the in-plane switching mode LCD device according tothis exemplary embodiment will be described.

The in-plane switching mode LCD device according to this exemplaryembodiment includes a first substrate 410, color filter layers 412R,412G, and 412B, a conductive light-shielding layer 414, a conductivelayer 416, a first overcoat layer 417, a second substrate 420, a pixelarray 422 including a transparent pixel electrode and a transparentcommon electrode, and an electrical connection part 424.

The conductive layer 416 is formed between the first substrate 410 and afirst overcoat layer 417. When the conductive layer 416 is formed on theentire lower surface of the first substrate 410, the conductive layer416 may be formed of a transparent conductive resin or a transparentconductive metal material such as ITO or IZO having relatively excellentlight transmissivity. Further, when the conductive layer 416 is formedunder the first substrate 410 and patterned to correspond to theconductive light-shielding layer 414, the conductive layer 416 may beformed of metal material and conductive resin of all types including thetransparent conductive resin and the transparent conductive metalmaterial.

The transparent conductive resin may be composed of a mixture (ITOPowder +Acryl) of ITO powder and acryl or epoxy. Further, an upperconductive polarizer 419 may be formed on the first substrate 410.

The conductive light-shielding layer 414 serves to prevent lightleakage, and may include Cr. The conductive light-shielding layers 414are formed under the first overcoat layer 417 to be spaced apredetermined distance from each other. In general, the conductivelight-shielding layer 414 divide the red, green, and blue color filterlayers 412R, 412G, and 4123.

The filter layers 412R, 412G, and 4123, formed of a photosensitiveorganic material, are alternately arranged in sequence of red, green,and blue color filter patterns between the respective conductivelight-shielding layers 414. Meanwhile, the second overcoat layers 418may be selectively formed under the color filter layers 412R, 412G, and412B so as to remove a step difference formed by the color filter layers412R, 412G, and 412B and improve planarity.

The pixel array 422 including a pixel electrode and a transparent commonelectrode is formed on one surface of the second substrate 420.Meanwhile, although not shown, the respective pixel regions are definedby gate lines and data lines formed in directions crossing each other,and switching devices are formed at intersections of the gate lines andthe data lines. Further, the pixel electrode and the transparent commonelectrode are spaced apart from each other to overlap a predeterminedregion, with an insulating layer interposed therebetween, and are formedin the pixel region in order to apply a voltage to a liquid crystallayer 430 to thereby adjust light transmissivity.

The electrical connection part 424 is electrically connected to theconductive light-shielding layer 414 and the transparent commonelectrode of the pixel array 422. The electrical connection part 424includes a transfer dotting part including a metal having highconductivity, preferably, silver (Ag), or a conductive sealing memberincluding gold (Au).

When a common voltage is applied to the transparent common electrode ofthe pixel array 422, the common voltage is applied lo to the conductivelight-shielding layer 414 through the electrical connection part 424 soas to form an induced electric field between the conductivelight-shielding layer 414 and the conductive layer 416, therebypreventing external static electricity from affecting the LC layer 430.That is, as indicated by arrows which are represented in the firstovercoat layer 417, the induced electric field is formed between theconductive layer 416 and the conductive light-shielding layer 414,thereby preventing liquid crystal polarization from occurring in theliquid crystal layer.

In FIG. 4, reference numerals 425, 426, 428, and 429 represent a sealingmember, a lower polarizer, a backlight unit, and a mold frame,respectively.

FIG. 5 is a schematic cross-sectional view of an in-plane switching modeLCD device according to still another exemplary embodiment of thepresent invention.

Referring to FIG. 5, the in-plane switching mode liquid crystal displayin accordance with an exemplary embodiment of the present inventionincludes includes a first substrate 510, color filter layers 512R, 512G,and 512B, a light-shielding layer 514, a first conductive layer 516 a, asecond conductive layer 516 b, a second substrate 520, a pixel array 522including a transparent pixel electrode and a transparent commonelectrode, and an electrical connection part 532.

The first conductive layer 516 a is formed under the first substrate510. When the conductive layer 516 a is formed on the entire on onesurface of the first substrate 510, the first conductive layer 516 a maybe formed of a transparent conductive resin or a transparent conductivemetal material such as ITO or IZO having relatively excellent lighttransmissivity. Further, when the first conductive layer 516 a is formedunder the first substrate 510 and patterned to correspond to thelight-shielding layer 514, the first conductive layer 516 a may beformed of metal material and conductive resin of all types including thetransparent conductive resin and the transparent conductive metalmaterial. The transparent conductive resin may be composed of a mixture(ITO Powder+Acryl) of ITO powder and acryl or epoxy. Further, anconductive polarizer 519 may be formed on the first substrate 510.

The light-shielding layers 514 are formed under the first conductivelayer 516 a to be spaced a predetermined distance from each other. Ingeneral, the light-shielding layer 514 divide the red, green, and bluecolor filter layers 512R, 512G, and 512B.

The filter layers 512R, 512G, and 512B, formed of a photosensitiveorganic material, are alternately arranged in sequence of red, green,and blue color filter patterns between the respective light-shieldinglayers 514. Meanwhile, the first overcoat layers 517 may be selectivelyformed between the first conductive layer 516 a, the color filter layers512R, 512G, and 512B and the light-shielding layer 514.

The second conductive layer 516 b substantially patterned under thelight-shielding layer 514 in a shape corresponding to thelight-shielding layer 514.

Meanwhile, an overcoat layer 518 may be selectively formed under thecolor filter layers 512R, 512G and 512B to remove a step differencegenerated by the color filter layers 512R, 512G and 512B and improveplanarity. The second conductive layer 516 b may be formed under theovercoat layer 518.

The second conductive layer 516 b may be formed between the firstovercoat layer 517 and the light-shielding layer 514. The secondconductive layer 516 b may be formed on the entire upper one surface ofthe first overcoat layer 517.

The pixel array 522 including a transparent pixel electrode and atransparent common electrode is formed on one surface of the secondsubstrate 520. Meanwhile, although not shown, the respective pixelregions are defined by gate lines and data lines formed in directionscrossing each other, and switching devices are formed at intersectionsof the gate lines and the data lines. Further, the pixel electrode andthe transparent common electrode are spaced apart from each other tooverlap a predetermined region, with an insulating layer interposedtherebetween, and are formed in the pixel region in order to apply avoltage to a liquid crystal layer 530 to thereby adjust lighttransmissivity.

The electrical connection part 532 is electrically connected to thesecond conductive layer 516 b and the transparent common electrode ofthe pixel array 522. The electrical connection part 532 includes atransfer dotting part including a metal having high conductivity,preferably, silver (Ag), or a conductive sealing member including gold(Au).

When a common voltage is applied to the transparent common electrode ofthe pixel array 522, the common voltage is applied to the secondconductive layer 516 b through the electrical connection part 532 so asto form an induced electric field between the first conductive layer 516a and the second conductive layer 516 b, thereby preventing externalstatic electricity from affecting the LC layer 530. That is, asindicated by arrows which are represented, the induced electric field isformed between the first conductive layer 516 a and the secondconductive layer 516 b, thereby preventing liquid crystal polarizationfrom occurring in the liquid crystal layer.

Meanwhile, as shown in FIG. 5, the IPS LCD further includes a sealingmember 525, a lower polarizer 526, a back light unit 528, and a moldframe 529.

In addition, although the exemplary embodiments of the IPS LCD of thepresent invention have been described, not being limited thereto, thepresent invention may be adapted to all LCDs using optical anisotropyand polarizing characteristics of liquid crystal.

As can be seen from the foregoing, a common electric potential isapplied to a conductive light-shielding layer formed on the other sideof a first substrate through an electrical connection part to form aninduced electric field with respect to a conductive layer formed on oneside of the first substrate, thereby suppressing a liquid crystalpolarization due to external static electricity to improve display imagequality.

Further, according to the present invention, a common potential isapplied to a second conductive layer formed on the other surface of thefirst substrate through an electrical connection part to form an inducedelectric field with respect to a first conductive layer formed on oneside of the first substrate, thereby suppressing a liquid crystalpolarization due to external static electricity to improve display imagequality.

Although exemplary embodiments of the present invention have beendescribed for illustrative purposes, not being limited thereto, thoseskilled in the art will appreciate that various modifications, additionsand substitutions are possible, without departing from the scope andspirit of the invention as disclosed in the accompanying claims.

1. An in-plane switching mode liquid crystal display comprising. a firstsubstrate having a first conductive layer and second conductive layer,the first conductive layer and second conductive layer formed on eachsurface of the first substrate; a second substrate having a transparentpixel electrode and a transparent common electrode formed on one surfaceof the second substrate, facing the second conductive layer; and anelectrical connection part installed to electrically connect the secondconductive layer to the transparent common electrode, wherein a commonvoltage applied to the transparent common electrode is applied to thesecond conductive layer through the electrical connection part.
 2. Thein-plane switching mode liquid crystal display according to claim 1,wherein a color filter layer is formed on the first substrate andincludes color filter patterns, and the second conductive layer is apatterned conductive light-shielding layer formed between the colorfilter patterns.
 3. The in-plane switching mode liquid crystal displayaccording to claim 2, wherein the first conductive layer is patterned ina shape corresponding to the light-shielding layer.
 4. The in-planeswitching mode liquid crystal display according to claim 1, wherein acolor filter layer is formed on the first substrate and includes colorfilter patterns and a conductive light-shielding layer formed betweenthe color filter patterns, and wherein the second conductive layer ispatterned in a shape corresponding to the conductive light-shieldinglayer.
 5. The in-plane switching mode liquid crystal display accordingto claim 1, wherein the first conductive layer is replaced with aconductive polarizer.
 6. The in-plane switching mode liquid crystaldisplay according to claim 1, further comprising a conductive polarizeron the first conductive layer.
 7. The in-plane switching mode liquidcrystal display according to claim 1, wherein the first conductive layerand the second conductive layer are formed of a metal material or aconductive resin.
 8. The in-plane switching mode liquid crystal displayaccording to claim 1, wherein the first conductive layer and the secondconductive layer are totally formed of a transparent metal material or atransparent conductive resin.
 9. The in-plane switching mode liquidcrystal display according to claim 1, further comprising a color filterlayer formed on the first substrate and including color filter patternsand a light-shielding layer including color filter patterns.
 10. Thein-plane switching mode liquid crystal display according to claim 1,further comprising an overcoat layer between the first conductive layerand the second conductive layer.
 11. An in-plane switching mode liquidcrystal display comprising: a first substrate having a first conductivelayer, a second conductive layer, and an insulating layer between thefirst conductive layer and the second conductive layer; a secondsubstrate having a transparent pixel electrode and a transparent commonelectrode formed on one surface of the second substrate, facing thesecond conductive layer; and an electrical connection part installed toelectrically connect the second conductive layer to the transparentcommon electrode, wherein a common voltage applied to the transparentcommon electrode is applied to the second conductive layer through theelectrical connection part.
 12. The in-plane switching mode liquidcrystal display according to claim 11, wherein the insulating layer isan over coater layer for improving planarization.
 13. The in-planeswitching mode liquid crystal display according to claim 11, wherein acolor filter layer is further formed on the first substrate, andincludes color filter patterns, and the second conductive layer is apatterned conductive light-shielding layer formed between the colorfilter patterns.
 14. The in-plane switching mode liquid crystal displayaccording to claim 13, wherein the first conductive layer is patternedin a shape corresponding to the light-shielding layer.
 15. The in-planeswitching mode liquid crystal display according to claim 11, furthercomprising a color filter layer formed on the first substrate andincluding color filter patterns and a light-shielding layer includingcolor filter patterns.
 16. The in-plane switching mode liquid crystaldisplay according to claim 11, wherein a color filter layer is furtherformed on the first substrate and includes color filter patterns and aconductive light-shielding layer formed between the color filterpatterns, and wherein the second conductive layer is patterned in ashape corresponding to the conductive light-shielding layer.
 17. Thein-plane switching mode liquid crystal display according to claim 11,further comprising a conductive polarizer on the first substrate. 18.The in-plane switching mode liquid crystal display according to claim11, wherein the first conductive layer and the second conductive layerare formed of a metal material or a conductive resin.
 19. The in-planeswitching mode liquid crystal display according to claim 11, wherein thefirst conductive layer and the second conductive layer are totallyformed of a transparent metal material or a transparent conductiveresin.